CAIE IGCSE Physics 3.1.4 Recall Use for Wave Speed V F Questions

Practise calculating wave speed, frequency and wavelength with v = fλ, unit conversions and medium speeds using CAIE IGCSE Physics questions and mark schemes.

Syllabus
2026–2028
Course
Physics 0625

Exam points

  • Calculate wave speed, frequency or wavelength using v = fλ, converting units and selecting the correct medium speed.

CAIE IGCSE Physics 3.1.4 Recall Use for Wave Speed V F Questions question 1

[Maximum number: 1]

The table shows information about different colours of light.

colour<br>of lightfrequency /Hz/ \mathrm{Hz}
violet7.2×10147.2 \times 10^{14}
blue6.3×10146.3 \times 10^{14}
yellow5.2×10145.2 \times 10^{14}
red4.5×10144.5 \times 10^{14}

Using the data, what is the frequency of orange light?

A

4.0×1014 Hz4.0 \times 10^{14} \mathrm{~Hz}

B

5.0×1014 Hz5.0 \times 10^{14} \mathrm{~Hz}

C

6.0×1014 Hz6.0 \times 10^{14} \mathrm{~Hz}

D

7.0×1014 Hz7.0 \times 10^{14} \mathrm{~Hz}

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